python - how to save a column vector in an iteration process to a text file -


i need save column vector obtained in iteration text file using python.

this have been using till now

savetxt('displacement{0}.out'.format(globdat.cycle), a, delimiter=',', fmt='%10.4e',)

globdat.cycle used count in each iteration separate file made.

requirement - not require separate files single file contains vectors corresponding each iteration.

eg - iteration 1 values = [ 1 2 3 4 5 6 ]' , iteration 2 values = [ c v b f h ]'

my text file should similar to

1,a

2,c

3,v

4,b

5,f

6,h

i appreciate help.

thanks


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